βλῆχνον
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
English (LSJ)
τό (v.l. βλῆχρον, as in Sch.Theoc.3.14, Cyr. (
A βλήχρα Hsch.)), = πτέρις, male fern, Aspidium Filix-mas, Dsc.4.184.